Expansion base for a notebook persoanl computer



FIG. 1 is a front, left side, and top perspective view of an expansion base for a notebook personal computer showing our new design in its operative position with a notebook personal computer attached and shown in broken lines for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a front, left side, and top perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for an expansion base for a notebook personal computer, as shown and described. 